Continued airworthiness
Continued-airworthiness deliverables review for approval holders
A continued-airworthiness deliverables review checks whether the in-service obligations attached to an approval are actually documented and supportable, not just promised in the certification plan. It is used by avionics, equipment, and modification teams who hold or are about to hold a design approval and must carry it after issuance. It reviews the instructions for continued airworthiness, the life limits and maintenance tasks, the service-information process, and the configuration and change controls. You receive a deliverables assessment against the obligations, a gap list, and a plan to make the in-service commitments real.
When this review is needed
- A design approval is close to issuance and the in-service obligations attached to it have not been built out.
- An approval is already held and the team is unsure whether its continued-airworthiness deliverables hold up to audit.
- Inspection tasks or life limits were promised during certification and need to be reconciled with what was actually documented.
- A change to the approved design has to flow through the service information and configuration controls.
The problem
The obligations that begin at issuance are easy to under-resource because the program is focused on getting the approval. Life limits, inspection thresholds, and the process for issuing service information are committed in the plan, then left thin. When a question arrives in service or an audit looks at the holder's obligations, the deliverables behind those commitments are not there.
What gets reviewed
- The continued-airworthiness obligations the approval and basis impose
- The instructions for continued airworthiness and their completeness
- The life limits, inspection thresholds, and maintenance tasks and their substantiation
- The process for raising and issuing service information
- Configuration control and how design changes reach the in-service fleet
- Records of the holder's continued-airworthiness responsibilities
Scope this review
Tell us the asset, the event, and the evidence in scope, and we will outline a focused first engagement.
Identify what is missing against the means of compliance.
What gets validated
- Every in-service obligation in the basis has a documented deliverable behind it
- Life limits and inspection thresholds trace to the analysis that set them
- Maintenance and inspection tasks are written to be actionable by the operator
- The service-information process can raise, approve, and distribute a bulletin
- Configuration control links design changes to updated in-service instructions
- The holder's continued-airworthiness responsibilities are recorded and assignable
Evidence normally required
- The certification basis sections covering continued airworthiness
- The draft or issued instructions for continued airworthiness
- Life-limit and inspection-task substantiation
- The service-information and change-management procedures
- Configuration-control records for the approved design
Common discrepancies
- A life limit stated in the instructions with no traceable substantiation
- Inspection tasks written too vaguely for an operator to perform consistently
- No defined process for raising and distributing service information
- Design changes that never flow into the in-service instructions
- Continued-airworthiness responsibilities that are unassigned within the holder
What is at stake
Thin in-service deliverables surface at the worst time, when an operator needs guidance or an authority audits the holder's continued-airworthiness responsibilities. Reconstructing the basis for a life limit or a task after the fact is slower and weaker than documenting it while the certification rationale is fresh.
How the work runs
Map the obligations
Identify the continued-airworthiness obligations the approval and basis impose on the holder.
Check the deliverables
Compare the instructions, life limits, and tasks against those obligations and their substantiation.
Test the process
Confirm the service-information and configuration-control processes can actually run.
Plan the closure
Produce a gap list and a plan to complete the in-service deliverables.
What the buyer receives
- A deliverables assessment against the approval's in-service obligations
- A gap list for the instructions, life limits, and service-information process
- A plan to complete and substantiate the continued-airworthiness deliverables
Who uses the output
- Continued-airworthiness leads owning the post-issuance obligations
- Engineering teams substantiating limits and tasks
- Certification leads confirming the holder can carry the approval
How the work fits into the transaction or program
The review looks past issuance to the obligations that run for the life of the approval. It pairs with ICA development when the instructions themselves need building and complements a submittal readiness review by confirming the in-service commitments are real before they are filed.
Start with a single asset
Reduce finding cycles by checking the package first.
Regulatory limits
Endeavor Elements reviews the applicant's continued-airworthiness deliverables. It does not approve instructions for continued airworthiness, make compliance findings, or assume the holder's continuing obligations. Those responsibilities stay with the approval holder and the authority.
What this review does not cover
- Assuming the approval holder's continuing-airworthiness responsibilities
- Approving instructions or making compliance findings
- Issuing service information in the holder's name
Specific to this review
- Continued-airworthiness obligations begin at issuance and run for the life of the approval, so deliverables are reviewed for whether they can be carried, not just delivered once.
- Life limits are checked against the analysis that set them, since a limit with no traceable basis is hard to defend in service.
- A holder needs a working process to raise and distribute service information; the absence of that process is a common gap even when the instructions exist.
- Inspection tasks are assessed for whether an operator can actually perform them, because a task that cannot be executed consistently does not protect the fleet.
Sources
U.S. Government (eCFR). Type certificates, STCs (Subpart E), TSO authorizations (Subpart O), PMA (Subpart K), and export airworthiness approvals (Subpart L).
Federal Aviation Administration. STC application process, certification basis, and continued airworthiness obligations of an STC holder.
European Union / EASA. Continuing airworthiness, maintenance records, CAMO responsibilities, and the airworthiness review process in the EASA system.
International Civil Aviation Organization. International standards for the airworthiness of aircraft and the framework states use for type and continuing airworthiness.
Frequently asked questions
Is this the same as developing the ICA?
No. This review assesses the full set of in-service deliverables against the approval's obligations. Developing or reviewing the instructions for continued airworthiness is a focused piece that can run alongside it.
Relevant glossary terms
Related pages
Where this fits
Talk to an engineer who has done this work
We will walk through your current state, the records or evidence involved, and a scoped first engagement.
Walk through your situation with an engineer who has done this work.